Batch drying, heating, and feeding apparatus for glass-furnaces.



No. 823,757. PATENTED JUNE 19,1906.

y ofL. BETZ. BATCH DRYING, HEATING, AND

FEEDING" APPARATUS-FOR G-L APPLICATION FILED MAYS, 1905.

AssfURNAGEs;

A //l///////////////////////////////////////Z ATo all 'whom 'it may` concern: l

' VUNITED STATES PATENT oEEIoE.,

CHARLES L. RETZ, or ROCHESTER, PENNSYLVANIA, AssIG-NoR' To HENRY o. ERY,.oERooHEsTER,. PENNSYLVANIA.

BATCH DRYING, HEATING, AND FEEDING APPARATUS FR GLAS'IS-FYURNACES.

Be it known that I, CHARLES L.' BE'Tz, a Citizen of the United States, residing at Rochester, in the county-of Beaver and State of Pennsylvania, have invented certain new and useful Improvements in Batch Drying, Heating, and Feeding Ap aratus for Glass- Furnaces, of which the fol owing is as ecifiparatus, and has-particu cation, reference beinghad therein to t e ac-` anying drawings. l 's invention relates to glass-melting apar reference to means for dryingthe batch and for heating the same in a preliminary way-before it enters'thefurnace. The invention further recom 'T -lates to the utilization of the heat radiated from the furnace for -dr 'ng and heating. the batch. lThe' invention as further reference d to improved mechanism for feedingfthe batch zoto Vthev furnaces.

In the manufacture of glass it is la Well-` l known fact that the batch contains a consid- .'erable amount of. moisture as it comes from themixing-room, and when the moist batch 1s placed In the furnace and heated the steam 4jor vapor generated therefrom injuriously affects the furnace,.particularly pot-furnaces,

Y the reatest loss resulting in the pots crack- Ing om .this cause. Furthermore, with the batch moist and cold an appreciably longer time is required in melting the same' than` when the batch'is 'first thoroughly dri'ed 'and ber 3 the, curved or semicircular form of the heated. .With the present invention.vl the obj ections referred to are. avoided, the furnaces areI reserved, and the melting operation is fac' tated. d In the accompan ng drawings, Figure. 1 is a vertloal sectiona viewkof apparatus em-` bodyin -vlew o the same, partly in section. Fig. 3 Illustrates amodification" WE1@ the invention may te utilized. inl

connection with .various t es of pot and tank furnaces, I have here shwn the same as applied to a series of continuous pot-furnaces 2, which are arranged within a furnace-chamlatter here shown being a convenient and compact shape for most glass-factories. The furnace may be variously fired or heated, such" feature of the apparatus comprising no portion of the invention. As here shown, `eaclrend of 'the fioor of furnace '3 has a vchecker-work 4, whereby the 'heat generated I Specification of Letters Patent.

Appunti@ filed may 3,1905. semi No, 258,720.

llower end thereof is the dischar e-passa e 7 my invention. Fig. 2 1s` atop. plan Patented June 19,1906.

from below may be directed through Ythe furnace and around the pots alternately in ree verse directions,- as inA the well-knownl types .of reverberatory furnaces.

. Above and inclosing qfurnacechs'imber 3 is a superstructure 5, within which is a series of bins or hoppers 6, in the resent adaptation of the invention one of t ese bins being ar-vranged above. each of pot-furnaces 2. Thel bottom 6 of each bin is inclined, and at the of necl form, through which t e batc is lpassedto the furnace in manner presently to 'e described. The bins are above the crown rated from each other that the heat has accontained therein is thoroughly dried and heated preliminarily before passing to they f said b`ox being provided with a chimney conof furnace-compartment 3 and are so sepa- .7 cess to all sides thereof, whereby the batch A Located .above-'or adjacent to box 9- is a batch-receiving hopper 10, from which radiate the severa ward over inclined flues 8. with their lower ends opening into bins. As chutes -11 and binfilling chutes 11, vwhich preferably extend through'box 9 and downflues 8 are separated only by a thin. metal u partition 11', the-latter constitutes a heated surface, over the entire length ofwhich the batch travels by gravityfrom ho per 10 to the bins', so that evenbefore the batc reaches the' bin it is heated and much of themoisture removed. The batch may be conveyed from the mndngfroom (not shown) to hopper l0 by an endless conveyer 12, of any desired form, while an overflow --chute 13 may extend fromvthe hopper back to the mixing-room for the purl:Rose of returning any excess material from the opper. It will of course be understoodthatin practice any desired number of meltmg-fur- IOO naces maybe utilizedin a single apparatus, or.`

one alonemay be used, the num er of flues `8 and chiites 11 bein yared accordingly.

Where therl are anum er of furnaces and is not desired to utilize'all of them, the fillingchutesof those not in use may be pluged at n hopper 10, 'as will be understood. Wit

flues p 3o l1nes,.an`d filling-opening15 is plugged.

by utilizing the waste heat in a most efficientway for thoroughly drying and heatingy the outward when not in use and when in -usel batch.

- A convenient form of mechanism for filling pot -furnaces of continuous type, such as shown \in Figs. 1 and 2, consists of a curved spout 14, hinged at its upper end to swing adapted to form a continuation'of .dischar eneck 7 of bin 6, with, the lower end of t e spout communicating. with. thel filling-o ening of pot-furnace 2, Cut-offs116an `16 are arranged in the upper and lower portions ofthe filling-passage, cut-off 16.being open until the space u ward from cut-off 16 is filled, when cut-o 16 is closed and cut-0E 16 opened, thus permitting the measuring charge to ow into. the furnaces. As many, of these charges may be introduced at one time as desired, itbeing understood that with this type of pot-furnace the glass in working chamber 2 1s continuously incondition .for manufacture. When not in use, spout 14.is turned outwardand upward, as indicated in dotted In those .forms of apparatus employing the ordinary pot-furnaces 17, Fig. 3, the bottom of hopper 6 1s preferably inclined toward the front and-the hinged lillingspout 18 ar-` ran ed to.connect with the, mouth of worklng' ole 17', and as with this type of furnace the pot is filled to its fullest Acapacity for each heat -and is. then` sealed up and. the batch -melted it is unnecessary to provide for measuring the amountentering the same. f

.le in the present embodiment ofthe invention the batch-'receptacles are shown in ,elevated position in the furnace, whereby they are-conveniently heated and whereby the batch will liow by gravity into the furnaces,l theinventionis not confined to such istructure,` las thek receptacles may be variclaims.

ously located and the `batch dried ordried and heated prelirninarily by various means wlthout departing from the spirit and scope of the invention as defined by the appended I claim- 1. The combination of a glass-melting furnace, a source of batch-su ply 'above the fury nace, a batch-conduit lea ing from the source of supplyto the furnace, and aV product or hot-air flue leading from the furnace and extendin alongside of said conduit.

2. T e combination of a furnace structure, a source of batch-suppl aboye the furnace, a batch-heating receptac e Within the furnace structure, a conduit extending from the source of supply to thereceptacle, a product or hotair flue leading from the furnace'and extending alongside of said conduit, a glass-melting pot within the furnace, and means for passing the heated batch from said receptacle into the pot.

3. The combination of a lass-melting furnace, a source of batch-supp y, a conduit leading from said source of supply to the furnace, and a product-flue extending from the furnace and located adjacent said conduit for the purpose of heating the same.

4., The combination of a glass-melting furnace, a source of batch-supply above the furnace, abatch-conduit leading from the source of batch-supply to the furnace, and a roductflue extending from the furnace an located adjacent the conduit for the purpose of heating the same.

5. The combination of a glass-melting furnace, a source of batch-supply above the furnace,.abatchconduit leading from the source of batch-supply to the furnace, and a productflue leading from the furnace and paralleling said conduit and separated therefrom by a partition. I

6. The combinationof a glass-melting furnace, a source of batch-supply above the furnace, an inclined conduit extending from the source of rbatch-supply to the furnace, and a product-flue leading from the furnace and separated from the conduit by a partition, said partition forming the bottom of the conduit.

7. Inglass-melting apparatus, the combination of a furnace structure, separate batchheating and batch-melting receptacles Within. the structure, and a product-fine for the furnaceV structure. extending Athrough the batch-heating receptacle.

8. In lass-meltlng apparatus, the combination o? a furnace structure, separate glassheating andglass-melting receptacles therein, a source of batch-supply-separate and apart from` the furnace structure, a conduit leadin from said source of supply to the batcheating receptacle, and a roduct-fiue for .the furnace structure extending through the said heating-receptacle and leading from the furnace structure in close proximity to and heating the said conduit.

9. The combination of a lass-melting furnace, an elevated source o batch-supply, a conduit leading therefrom to the furnace, a

-product-chamber through which the u per portion of the conduit extends, and a rot uctfiue leadingfrom the furnace to said c amber. 10. The combination of a 'glass-furnace structure, a batch-receptacle in the upper ortion ofthe structure and adapted to be cated by heat radiated from the furnace, and a hot-airfoutlet extending through the receptacle.

11. The combination of a` series of glassmelting furnaces, a series of batch-receptacles-one for each furnace, means for heating IOO IIC

12. The combination of a furnace struc# 5 ture, a series of glass-melting'furnaces therein, a series of batch-receptacles in the upper portion oftle structure, a batclM-eceiving opler, and aserles of chutes extending frorn the o er to each of the meltingffurnaces.

1o 13. lille combination of a furnace structure, a series ofglass-melting Jfurnaces therein, batch-receptacles. Within the upper portion of the structure and located one over y each melting-furnace, hot-airflues extending through the receptacles, a chimney connec- I5- ti'on common to all of said ilues, a batoh-receiving hopper, and a series of chutesL extending from the hopper alongside the said lues and opening into the said receptacles.

" In testimony` whereof I affixiny signature zo iii presence of two Witnesses.

l 'CHARLES L. BE'lZ.

Witnesses: i

FRANK B. CnENEY, J. M. SHUSTER. 

